Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:36782 advisory.

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 10 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:36782 advisory.

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:36782 advisory.

    Authoritative DNS server for A/AAAA container records  Forwards other request to configured resolvers.
    Read more about configuration in `src/backend/mod.rs`.

    Security Fix(es):

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2026-36318 advisory.

    [2:1.17.1-1]
    - update to https://github.com/containers/aardvark-dns/releases/tag/v1.17.1
    - Resolves: RHEL-170152

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:36318 advisory.

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:36318 advisory.

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:36318 advisory.

    Authoritative DNS server for A/AAAA container records  Forwards other request to configured resolvers.
    Read more about configuration in `src/backend/mod.rs`.

    Security Fix(es):

    * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset     (CVE-2026-35406)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a     truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable     infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1. (CVE-2026-35406)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
326258	RockyLinux 10 : aardvark-dns (RLSA-2026:36782)	Nessus	Rocky Linux Local Security Checks	high
326055	AlmaLinux 10 : aardvark-dns (ALSA-2026:36782)	Nessus	Alma Linux Local Security Checks	high
325808	RHEL 10 : aardvark-dns (RHSA-2026:36782)	Nessus	Red Hat Local Security Checks	high
325771	Oracle Linux 9 : aardvark-dns (ELSA-2026-36318)	Nessus	Oracle Linux Local Security Checks	high
325769	AlmaLinux 9 : aardvark-dns (ALSA-2026:36318)	Nessus	Alma Linux Local Security Checks	high
325658	RockyLinux 9 : aardvark-dns (RLSA-2026:36318)	Nessus	Rocky Linux Local Security Checks	high
325595	RHEL 9 : aardvark-dns (RHSA-2026:36318)	Nessus	Red Hat Local Security Checks	high
305571	Linux Distros Unpatched Vulnerability : CVE-2026-35406	Nessus	Misc.	high

Detections

Analytics

CVE-2026-35406

high

Tenable Plugins

high

high

high

high

high

high

high

high